QtTinySA should work with all genuine hardware versions and the arm64 binary works (and was compiled on) on my Pi4.? I only have the Ultra so I can't test other versions.
There has been the occasional firmware version that didn't work.? I have not tested firmware v1_4_175 but I have tested 177, 189, 193 and 199 which all work, as do a lot of the earlier versions.
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From 177 onwards, Erik updated the firmware for me to allow the 'scanraw' command to loop and scan continuously.? This made a noticeable improvement to the QtTinySA scanning speed, so unless you have some particular reason for not updating to a later version there is an advantage in being on 177 or later.
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I am happy to help more but this is Erik's forum so please raise the issue on
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Please post the output of the terminal screen.? In terms of 'remote access', I use my Pi4 running QtTinySA over 'tigerVNC' and it works very well on my gigabit LAN.
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Ian